COS(X)=COS(20)

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Solution for COS(X)=COS(20) equation: 


Simplifying
COS(X) = COS(20)

Multiply COS * X
COSX = COS(20)

Reorder the terms for easier multiplication:
COSX = 20COS

Solving
COSX = 20COS

Solving for variable 'C'.

Move all terms containing C to the left, all other terms to the right.

Add '-20COS' to each side of the equation.
-20COS + COSX = 20COS + -20COS

Combine like terms: 20COS + -20COS = 0
-20COS + COSX = 0

Factor out the Greatest Common Factor (GCF), 'COS'.
COS(-20 + X) = 0


Subproblem 1
Set the factor 'COS' equal to zero and attempt to solve:

Simplifying
COS = 0

Solving
COS = 0

Move all terms containing C to the left, all other terms to the right.

Simplifying
COS = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

Subproblem 2
Set the factor '(-20 + X)' equal to zero and attempt to solve:

Simplifying
-20 + X = 0

Solving
-20 + X = 0

Move all terms containing C to the left, all other terms to the right.

Add '20' to each side of the equation.
-20 + 20 + X = 0 + 20

Combine like terms: -20 + 20 = 0
0 + X = 0 + 20
X = 0 + 20

Combine like terms: 0 + 20 = 20
X = 20

Add '-1X' to each side of the equation.
X + -1X = 20 + -1X

Combine like terms: X + -1X = 0
0 = 20 + -1X

Simplifying
0 = 20 + -1X

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.

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